buraksenn opened a new pull request, #20904: URL: https://github.com/apache/datafusion/pull/20904
## Which issue does this PR close? Does not close but part of https://github.com/apache/datafusion/issues/20766 ## Rationale for this change Details are in #20766. But main idea is to use existing distinct count information to optimize joins similar to how Spark/Trino does ## What changes are included in this PR? This PR extends cardinality estimation for semi/anti joins using distinct counts ## Are these changes tested? I've added cases but not sure if I should've added benchmarks on this. ## Are there any user-facing changes? No -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
